Speaker



FIG. 1 is a front perspective view of a speaker.

FIG. 2 is a back perspective view of the speaker.

FIG. 3 is a front view of the speaker.

FIG. 4 is a rear view of the speaker.

FIG. 5 is a top view of the speaker.

FIG. 6 is a bottom view of the speaker.

FIG. 7 is a side view of the speaker; and,

FIG. 8 is an opposite side view of the speaker. 

CLAIM The ornamental design for a speaker, as shown and described. 